作业帮两个英语问题(请附详细解析_________happened to be no one in the room when the fire broke out.A．It B.This C.There D.That—Oh,the meat has gone bad!—You ________ it in the refrigerator.A.must not have kept B.must have kept C.should have
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两个英语问题(请附详细解析_________happened to be no one in the room when the fire broke out.A．It B.This C.There D.That—Oh,the meat has gone bad!—You ________ it in the refrigerator.A.must not have kept B.must have kept C.should have
两个英语问题(请附详细解析
_________happened to be no one in the room when the fire broke out.
A．It B.This C.There D.That
—Oh,the meat has gone bad!
—You ________ it in the refrigerator.
A.must not have kept B.must have kept
C.should have kept D.should not have kept
第二题如何理解have kept?
两个英语问题(请附详细解析_________happened to be no one in the room when the fire broke out.A．It B.This C.There D.That—Oh,the meat has gone bad!—You ________ it in the refrigerator.A.must not have kept B.must have kept C.should have
C这实际上就是there be句型的变形,happen toShiite碰巧,恰巧的意思,这是把there be句型和happen to的形式放在一个句子里了,所以是there happened to be no one in the room ..
当火灾发生时,教室里碰巧一个人也没有（是庆幸没有发生伤亡的意思）.
C
should have done是本应该做某事,但是却没有做
“肉坏了.”“你本应该把它放在冰箱里的：.
潜在的意思是,你应该把肉放在冰箱里,但是因为你并没有把它放在冰箱里,所以肉放坏了.
a it做主语的句子,
c should have do ,应该...,而实际上没有做